During the livestream of Facebook's special mobile event today, CEO Mark Zuckerberg announced that Facebook for iPhone would be getting a major update, including support for Facebook's new Groups feature and improvements to Places integration -- making it more intuitive and easier to check your friends into a specific venue.

Facebook will also be making the inclusion of photos to a check-in within Places more simple and straight-forward, and introducing Deals for local discounts. All great news for Facebook users who use the service on their iPhone.

Zuckerberg also mentioned that their App Store app is used on the majority of all iPhones in the market today.

UPDATED: The new version is live in the App Store now, go get it and let us know what you think of it in the comments below!

During a press event today, Facebook announced new Groups, which aim to simplify and make social interaction more communal, data portability which sounds like it takes a little of the wall off Facebook's garden, and application control, which should let you better decide who gets your data.

Mashable's got the goods on all of it:

Groups are closed by default (but can be secret or open) and are designed to be spaces where small groups of friends share information, with each group controlled by the entirety of its members — an important new direction for Facebook. The group chat feature is just as it sounds; members can participate in back-and-forth IM conversations with everyone in the group at the same time.

On the data portability front, Facebook has now made it possible to download all of the content and information that you have added to Facebook. This means that you can download your photos, videos, wall posts, conversation threads and status updates.

How -- and of course when -- we'll see groups implemented on the iPhone Facebook app is anyone's guess, as is when -- or if -- we'll see a Facebook app for iPad. We did get Places fairly quickly in the US and more and more countries are rolling out every week, so it could be on it's way.

While we wait and see, what do you think of the changes in general?

[Mashable, Mashable]

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